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Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Millions | Apr. 20, 2018 | Mar. 31, 2018
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Accrued Expenses |  |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |  |
Derivative liability |  | $ 2.0
Interest Rate Swaps |  |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |  |
Derivative notional amount |  | 125.0
Subsequent Event |  |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |  |
Payment for interest rate swap | $ 0.2 |
Accounting Standards Update 2016-16 |  |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |  |
Prepaid taxes written off to accumulated deficit |  | $ 2.6

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